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EP0882503A2
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EP
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High activity catalysts
Assignee: Shell USA Inc
•
Filing: 1995-05-01
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Granted: —
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Expires: 2015-05-01
Abstract
Abstract Provided is a process for improving the activity of catalysts based upon gamma alumina containing substrates impregnated with one or more catalytically active metals.
Inventors
- 👤 Peter Joseph Shukis
- 👤 James Donald Carruthers
- 👤 Vincent Joseph Lostaglio
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 16:04
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/881; B01J21/00; B01J21/02; B01J21/04; B01J23/882; B01J23/883; B01J23/90; B01J23/94; B01J27/00; B01J27/14; B01J27/186; B01J27/188; B01J35/00; B01J35/60; B01J37/00; B01J37/02; B01J37/0201; B01J37/0203; B01J37/06; B01J38/00; B01J38/48; B01J38/64; B01J38/66; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G45/00; C10G45/02; C10G45/04; C10G45/58; C10G45/60; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G49/00; C10G49/02; C10G49/04; B01J35/61; B01J35/615; B01J35/63; B01J35/633; B01J35/70; B01J35/77
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
111 words
A process for improving the activity of a catalyst composition comprising a
particulate porous support comprising gamma alumina and amorphous alumina, having
a surface area of at least 100 square meters (as measured by nitrogen adsorption) and
a pore volume of at least 0.25 cubic centimeters per gram (as measured by mercury
porosimetry), and impregnated with one or more catalytically active metals, by the steps
of: (1) wetting the catalyst composition by contact with a chelating agent in a
carrier liquid; (2) aging the so-wetted substrate while wet; (3) drying the so-aged substrate at a temperature and under conditions to
substantially volatilize the carrier liquid; and (4) calcining the so-dried substrate.
Claim 2
Dependent Claim
84 words
A process for preparing a catalyst composition comprising the steps of: (1) impregnating a particulate porous support comprising gamma alumina
and amorphous alumina, with one or more catalytically active metals; (2) prior to, concurrently with or subsequent to step (1), wetting the support
by contact with a chelating agent in a carrier liquid; (3) aging the so-wetted impregnated support while wet; (4) drying the so-aged support at a temperature and under conditions to
substantially volatilize the carrier liquid; and (5) calcining the so-dried support.
Claim 3
Dependent Claim
85 words
A process for regenerating a spent catalyst composition comprising a particulate
porous support comprising gamma alumina and amorphous alumina, impregnated with
one or more catalytically active metals, comprising the steps of: (1) treating the spent catalyst to remove carbonaceous deposits; (2) wetting the so-treated support by contact with a chelating agent in a
carrier liquid; (3) aging the so-wetted support while wet; (4) drying the so-aged support at a temperature and under conditions to
substantially volatilize the carrier liquid; and (5) calcining the so-dried support.
Claim 4
Dependent Claim
29 words
The process of claims 1, 2 or 3, characterized in that the chelating agent
possesses a high stability constant with respect to the catalytically active metals of the
catalyst.
Claim 5
Dependent Claim
20 words
The process of claims 1 to 4, characterized in that the chelating agent is
ethylenediaminetetraacetic acid or a derivative thereof.
Claim 6
Dependent Claim
28 words
The process of claims 1 to 5, characterized in that the chelating agent is
selected from the group consisting of ethylenediaminetetraacetic acid, diammonium
ethylenediaminetetraacetic acid, tris(2-aminoethyl)amine and triethylenetetraamine.
Claim 7
Dependent Claim
25 words
The process of claims 1 to 6, characterized in that the aged substrate is
dried at a temperature in the range of 100°C to 250°C.
Claim 8
Dependent Claim
23 words
The process of claims 1 to 7, characterized in that the aged substrate is
dried with the aid of a forced air heater.
Claim 9
Dependent Claim
58 words
The process of claims 1 to 8, characterized in that the dried substrate is
calcined in a first stage at a temperature which is sufficient high to drive off or
decompose the chelating agent but which is not so high that the chelating agents
combust to form carbonaceous deposits, followed by a second stage at normal
calcining temperatures.
Claim 10
Dependent Claim
36 words
A process for the catalytic hydrodesulfurization of a hydrocarbon-containing feed
comprising the step of contacting the feed under hydrodesulfurization conditions with the
catalyst prepared by the process according to any one of claims
1 to 9.
Claim 11
Dependent Claim
36 words
A process for the catalytic hydrodenitrogenation of a hydrocarbon-containing feed
comprising the step of contacting the feed under hydrodenitrogenation conditions with
the catalyst prepared by the process according to any one of
claims 1 to 9.
Claim 12
Dependent Claim
36 words
A process for the catalytic hydroconversion of a hydrocarbon-containing feed
comprising the step of contacting the feed under hydroconversion conditions with the
catalyst prepared by the process according to any one of claims
1 to 9.
Claim 13
Dependent Claim
36 words
A process for the catalytic hydrodemetallation of a hydrocarbon-containing feed
comprising the step of contacting the feed under hydrodemetallation conditions with the
catalyst prepared by the process according to any one of claims
1 to 9.
Claim 14
Dependent Claim
36 words
A process for the catalytic hydrocracking of a hydrocarbon-containing feed
comprising the step of contacting the feed under hydrocracking conditions with the
catalyst prepared by the process according to any one of claims
1 to 9.
Claim 15
Dependent Claim
36 words
A process for the catalytic reforming of a hydrocarbon-containing feed comprising
the step of contacting the feed under reforming conditions with the catalyst
prepared by the process according to any one of claims 1 to 9.
Claim 16
Dependent Claim
36 words
A process for the catalytic hydrogenation-dehydrogenation of a hydrocarbon-containing
feed comprising the step of contacting the feed under hydrogenation-dehydrogenation
conditions with the catalyst
prepared by the process according to any one of claims 1 to 9.
Claim 17
Dependent Claim
36 words
A process for the catalytic isomerization of a hydrocarbon-containing feed
comprising the step of contacting the feed under isomerization conditions with the
catalyst prepared by the process according to any one of claims
1 to 9.
References Cited (Backward Citations)
No citation records indexed.
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